Pohlia elongata also has long-necked capsules and an endostome similar to that of P. longicolla. However, P. elongata plants are dull rather than shiny and have laminal cells diamond-shaped to 6-sided rather than long and worm-like (FNA 2014).

Lawton, E. 1971. Keys for the Identification of the Mosses on the Pacific Northwest. Reprinted from 'Moss Flora of the Pacific Northwest'. Published as Supplement No. 2 of the Journal of the Hattori Botanical Laboratory. Nichinan, Miyazaki, Japan. 66 pp.